| 步进频信号处理的多普勒补偿新方法 |
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| 引用本文： | 王卫江,沈庭芝.步进频信号处理的多普勒补偿新方法[J].北京理工大学学报,2006,26(4):353-355. |
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| 作者姓名： | 王卫江 沈庭芝 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 提出一种步进频信号处理中多普勒效应补偿的新方法.根据时间-频率二维数据矩阵中包含的距离、速度信息,利用不同距离单元的主杂波谱线所处的滤波器号几乎相同,且所占的距离单元数比较多的特点,采用FFT快速数字信号处理算法,实时、准确地得到多普勒频率的补偿值,从而对步进频信号处理中多普勒效应进行补偿.仿真实验结果表明,该方法简单有效,并已应用于毫米波火控雷达信号处理系统中.
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| 关 键 词： | 步进频率 时间-频率二维数据矩阵 多普勒补偿 |
| 文章编号： | 1001-0645（2006）04-0353-04 |
| 收稿时间： | 2005-08-29 |
| 修稿时间： | 2005-08-29 |
New Doppler Compensation Algorithm for Stepped-Frequency Signal Processing |
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| WANG Wei-jiang and SHEN Ting-zhi.New Doppler Compensation Algorithm for Stepped-Frequency Signal Processing[J].Journal of Beijing Institute of Technology(Natural Science Edition),2006,26(4):353-355. |
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| Authors: | WANG Wei-jiang and SHEN Ting-zhi |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A new algorithm for Doppler frequency compensation used in stepped-frequency signal processing is proposed.Doppler frequency compensation can be worked out quickly and accurately according to the distance-velocity information included in time-frequency data matrix,and the main clutter's features of different distance cells that it has almost the same Doppler frequency and occupies several distance cells.The fast algorithm of digital signal processing such as FFT is adopted.The experiment showed that the method is simple and effective,and has been applied in the signal processing system of millimeter wave fire-control radars. |
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| Keywords: | stepped-frequency time-frequency data matrix Doppler compensation |
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